def test_comparison_stringerific():
abc = String('abc')
xyz = String('xyz')
assert abc == abc
assert abc != xyz
assert not abc == xyz
assert not abc != abc
# Interaction with other types
assert Number(123) != String('123')
assert String('123') != Number(123)
# Sass strings don't support ordering
with pytest.raises(TypeError):
abc < xyz
with pytest.raises(TypeError):
abc <= xyz
with pytest.raises(TypeError):
abc > xyz
with pytest.raises(TypeError):
abc >= xyz
with pytest.raises(TypeError):
Number(123) < String('123')
def __grad_position(index, default, radial, color_stops):
try:
stops = Number(color_stops[index][0])
if radial and not stops.is_simple_unit('px') and (index == 0 or index == -1 or index == len(color_stops) - 1):
log.warn("Webkit only supports pixels for the start and end stops for radial gradients. Got %s", stops)
except IndexError:
stops = Number(default)
return stops
def __radial_svg(color_stops, cx, cy, r):
gradient = '<radialGradient id="grad" gradientUnits="userSpaceOnUse" cx="%s" cy="%s" r="%s">%s</radialGradient>' % (
to_str(Number(cx)),
to_str(Number(cy)),
to_str(Number(r)),
__color_stops_svg(color_stops)
)
return __svg_template(gradient)
def _linear_svg(color_stops, x1, y1, x2, y2):
gradient = '<linearGradient id="grad" x1="%s" y1="%s" x2="%s" y2="%s">%s</linearGradient>' % (
to_str(Number(x1)),
to_str(Number(y1)),
to_str(Number(x2)),
to_str(Number(y2)),
__color_stops_svg(color_stops)
)
return __svg_template(gradient)
def dash_compass_slice(lst, start_index, end_index=None):
start_index = Number(start_index).value
end_index = Number(end_index).value if end_index is not None else None
ret = {}
lst = List(lst)
if end_index:
# This function has an inclusive end, but Python slicing is exclusive
end_index += 1
ret = lst.value[start_index:end_index]
return List(ret, use_comma=lst.use_comma)
def _render_standard_color_stops(color_stops):
pairs = []
for i, (stop, color) in enumerate(color_stops):
if ((i == 0 and stop == Number(0, '%')) or
(i == len(color_stops) - 1 and stop == Number(100, '%'))):
pairs.append(color)
else:
pairs.append(List([color, stop], use_comma=False))
return List(pairs, use_comma=True)
def background_noise(density=None,
opacity=None,
size=None,
monochrome=False,
intensity=(),
color=None,
background=None,
inline=False):
if not Image:
raise Exception("Images manipulation require PIL")
density = [Number(v).value for v in List.from_maybe(density)]
intensity = [Number(v).value for v in List.from_maybe(intensity)]
color = [Color(v).value for v in List.from_maybe(color) if v]
opacity = [Number(v).value for v in List.from_maybe(opacity)]
size = int(Number(size).value) if size else 0
if size < 1 or size > 512:
size = 200
monochrome = bool(monochrome)
background = Color(background).value if background else None
new_image = Image.new(mode='RGBA', size=(size, size))
pixdata = new_image.load()
_image_noise(pixdata, size, density, intensity, color, opacity, monochrome)
if not inline:
key = (size, density, intensity, color, opacity, monochrome)
asset_file = 'noise-%s%sx%s' % ('mono-' if monochrome else '', size,
size)
# asset_file += '-[%s][%s]' % ('-'.join(to_str(s).replace('.', '_') for s in density or []), '-'.join(to_str(s).replace('.', '_') for s in opacity or []))
asset_file += '-' + base64.urlsafe_b64encode(
hashlib.md5(repr(key)).digest()).rstrip('=').replace('-', '_')
asset_file += '.png'
asset_path = os.path.join(
config.ASSETS_ROOT or os.path.join(config.STATIC_ROOT, 'assets'),
asset_file)
try:
new_image.save(asset_path)
except IOError:
log.exception("Error while saving image")
inline = True # Retry inline version
url = '%s%s' % (config.ASSETS_URL, asset_file)
if inline:
output = six.BytesIO()
new_image.save(output, format='PNG')
contents = output.getvalue()
output.close()
url = 'data:image/png;base64,' + base64.b64encode(contents)
inline = 'url("%s")' % escape(url)
return String.unquoted(inline)
def test_reference_operations():
"""Test the example expressions in the reference document:
http://sass-lang.com/docs/yardoc/file.SASS_REFERENCE.html#operations
"""
# TODO: break this into its own file and add the entire reference guide
# Need to build the calculator manually to get at its namespace, and need
# to use calculate() instead of evaluate_expression() so interpolation
# works
ns = CoreExtension.namespace.derive()
calc = Calculator(ns).calculate
# Simple example
assert calc('1in + 8pt') == Number(1.1111111111111112, "in")
# Division
ns.set_variable('$width', Number(1000, "px"))
ns.set_variable('$font-size', Number(12, "px"))
ns.set_variable('$line-height', Number(30, "px"))
assert calc('10px/8px') == String('10px / 8px') # plain CSS; no division
assert calc('$width/2') == Number(500,
"px") # uses a variable; does division
assert calc('(500px/2)') == Number(250, "px") # uses parens; does division
assert calc('5px + 8px/2px') == Number(9, "px") # uses +; does division
# TODO, again: Ruby Sass correctly renders this without spaces
assert calc('#{$font-size}/#{$line-height}') == String('12px / 30px')
# uses #{}; does no division
# Color operations
ns.set_variable('$translucent-red', Color.from_rgb(1, 0, 0, 0.5))
ns.set_variable('$green', Color.from_name('lime'))
assert calc('#010203 + #040506') == Color.from_hex('#050709')
assert calc('#010203 * 2') == Color.from_hex('#020406')
assert calc(
'rgba(255, 0, 0, 0.75) + rgba(0, 255, 0, 0.75)') == Color.from_rgb(
1, 1, 0, 0.75)
assert calc('opacify($translucent-red, 0.3)') == Color.from_rgb(
1, 0, 0, 0.8)
assert calc('transparentize($translucent-red, 0.25)') == Color.from_rgb(
1, 0, 0, 0.25)
assert calc(
"progid:DXImageTransform.Microsoft.gradient(enabled='false', startColorstr='#{ie-hex-str($green)}', endColorstr='#{ie-hex-str($translucent-red)}')"
).render(
) == "progid:DXImageTransform.Microsoft.gradient(enabled='false', startColorstr='#FF00FF00', endColorstr='#80FF0000')"
# String operations
ns.set_variable('$value', Null())
assert_strict_string_eq(calc('e + -resize'), String('e-resize',
quotes=None))
assert_strict_string_eq(calc('"Foo " + Bar'), String('Foo Bar',
quotes='"'))
assert_strict_string_eq(calc('sans- + "serif"'),
String('sans-serif', quotes=None))
assert calc('3px + 4px auto') == List(
[Number(7, "px"), String('auto', quotes=None)])
assert_strict_string_eq(calc('"I ate #{5 + 10} pies!"'),
String('I ate 15 pies!', quotes='"'))
assert_strict_string_eq(calc('"I ate #{$value} pies!"'),
String('I ate pies!', quotes='"'))
def grad_point(*p):
pos = set()
hrz = vrt = Number(0.5, '%')
for _p in p:
pos.update(String.unquoted(_p).value.split())
if 'left' in pos:
hrz = Number(0, '%')
elif 'right' in pos:
hrz = Number(1, '%')
if 'top' in pos:
vrt = Number(0, '%')
elif 'bottom' in pos:
vrt = Number(1, '%')
return List([v for v in (hrz, vrt) if v is not None])
def style_scss(self, *path):
css_namespace = Namespace()
for key, value in self.settings['keys'].items():
if isinstance(value, LCText):
css_value = String(value)
elif isinstance(value, LCColour):
css_value = Color.from_hex(value)
elif isinstance(value, LCBool):
css_value = Boolean(value.simple())
elif isinstance(value, LCSpin):
css_value = Number(value.simple())
else:
raise ValueError("Unable to find comparable values")
css_namespace.set_variable('${}'.format(key), css_value)
cherrypy.response.headers['Content-Type'] = 'text/css'
with open(os.path.join(self.settings['location'], *path), 'r') as css:
css_content = css.read()
compiler = Compiler(namespace=css_namespace, output_style='nested')
# Something wrong with PyScss,
# Syntax error: Found u'100%' but expected one of ADD.
# Doesn't happen on next attempt, so we are doing bad thing
attempts = 0
while attempts < 100:
try:
attempts += 1
ret_string = compiler.compile_string(css_content)
return ret_string
except Exception as exc:
if attempts == 100:
log.debug(exc)
def enumerate_(prefix, frm, through, separator='-'):
separator = String.unquoted(separator).value
try:
frm = int(getattr(frm, 'value', frm))
except ValueError:
frm = 1
try:
through = int(getattr(through, 'value', through))
except ValueError:
through = frm
if frm > through:
# DEVIATION: allow reversed enumerations (and ranges as range() uses enumerate, like '@for .. from .. through')
frm, through = through, frm
rev = reversed
else:
rev = lambda x: x
ret = []
for i in rev(range(frm, through + 1)):
if prefix and prefix.value:
ret.append(
String.unquoted(prefix.value + separator + six.text_type(i)))
else:
ret.append(Number(i))
return List(ret, use_comma=True)
def adjust_color(
color, red=None, green=None, blue=None,
hue=None, saturation=None, lightness=None, alpha=None):
do_rgb = red or green or blue
do_hsl = hue or saturation or lightness
if do_rgb and do_hsl:
raise ValueError(
"Can't adjust both RGB and HSL channels at the same time")
zero = Number(0)
a = color.alpha + (alpha or zero).value
if do_rgb:
r, g, b = color.rgba[:3]
channels = [
current + (adjustment or zero).value / 255
for (current, adjustment) in zip(color.rgba, (red, green, blue))]
return Color.from_rgb(*channels, alpha=a)
else:
h, s, l = color.hsl
h = (h + (hue or zero).value / 360) % 1
s += _interpret_percentage(saturation or zero, relto=100, clamp=False)
l += _interpret_percentage(lightness or zero, relto=100, clamp=False)
return Color.from_hsl(h, s, l, a)
def image_height(image):
"""
Returns the height of the image found at the path supplied by `image`
relative to your project's images directory.
"""
if not Image:
raise Exception("Images manipulation require PIL")
filepath = String.unquoted(image).value
path = None
try:
height = _image_size_cache[filepath][1]
except KeyError:
height = 0
IMAGES_ROOT = _images_root()
if callable(IMAGES_ROOT):
try:
_file, _storage = list(IMAGES_ROOT(filepath))[0]
except IndexError:
pass
else:
path = _storage.open(_file)
else:
_path = os.path.join(IMAGES_ROOT, filepath.strip('/'))
if os.path.exists(_path):
path = open(_path, 'rb')
if path:
image = Image.open(path)
size = image.size
height = size[1]
_image_size_cache[filepath] = size
return Number(height, 'px')
def image_width(image):
"""
Returns the width of the image found at the path supplied by `image`
relative to your project's images directory.
"""
if not Image:
raise SassMissingDependency('PIL', 'image manipulation')
image_size_cache = _get_cache('image_size_cache')
filepath = String.unquoted(image).value
path = None
try:
width = image_size_cache[filepath][0]
except KeyError:
width = 0
IMAGES_ROOT = _images_root()
if callable(IMAGES_ROOT):
try:
_file, _storage = list(IMAGES_ROOT(filepath))[0]
except IndexError:
pass
else:
path = _storage.open(_file)
else:
_path = os.path.join(IMAGES_ROOT, filepath.strip(os.sep))
if os.path.exists(_path):
path = open(_path, 'rb')
if path:
image = Image.open(path)
size = image.size
width = size[0]
image_size_cache[filepath] = size
return Number(width, 'px')
def kwatom(self):
_token_ = self._peek(self.kwatom_rsts)
if _token_ == '":"':
pass
elif _token_ == 'KWID':
KWID = self._scan('KWID')
return Literal(parse_bareword(KWID))
elif _token_ == 'KWNUM':
KWNUM = self._scan('KWNUM')
UNITS = None
if self._peek(self.kwatom_rsts_) == 'UNITS':
UNITS = self._scan('UNITS')
return Literal(Number(float(KWNUM), unit=UNITS))
elif _token_ == 'KWSTR':
KWSTR = self._scan('KWSTR')
return Literal(String(KWSTR[1:-1], quotes="'"))
elif _token_ == 'KWQSTR':
KWQSTR = self._scan('KWQSTR')
return Literal(String(KWQSTR[1:-1], quotes='"'))
elif _token_ == 'KWCOLOR':
KWCOLOR = self._scan('KWCOLOR')
return Literal(Color.from_hex(COLOR, literal=True))
else: # == 'KWVAR'
KWVAR = self._scan('KWVAR')
return Variable(KWVAR)
def test_comparison_null():
null = Null()
assert null == null
assert null != Number(0)
with pytest.raises(TypeError):
null < null
def test_linear_gradient():
# Set up some values
to = String.unquoted('to')
bottom = String.unquoted('bottom')
left = String.unquoted('left')
red = Color.from_name('red')
blue = Color.from_name('blue')
start = Number(0, "%")
middle = Number(50, "%")
end = Number(100, "%")
assert (linear_gradient(left, List((red, start)), List(
(blue, middle))) == String('linear-gradient(left, red, blue 50%)'))
assert (linear_gradient(List((to, bottom)), blue, List(
(red, end))) == String('linear-gradient(to bottom, blue, red)'))
def test_addition(calc):
assert calc('123 + 456') == Number(579)
assert calc('1px + 2px') == Number(3, "px")
assert calc('123 + abc') == String('123abc')
assert calc('abc + 123') == String('abc123')
assert calc('abc + def') == String('abcdef')
assert calc('abc + "def"') == String('abcdef')
ret = calc('"abc" + def')
assert ret == String('abcdef')
assert ret.quotes == '"'
ret = calc('"abc" + "def"')
assert ret == String('abcdef')
assert ret.quotes == '"'
assert calc('#010305 + #050301') == Color.from_hex('#060606')
assert calc('#ffffff + #ffffff') == Color.from_name('white')
def image_color(color, width=1, height=1):
if not Image:
raise Exception("Images manipulation require PIL")
w = int(Number(width).value)
h = int(Number(height).value)
if w <= 0 or h <= 0:
raise ValueError
new_image = Image.new(
mode='RGB' if color.alpha == 1 else 'RGBA',
size=(w, h),
color=color.rgba255,
)
output = six.BytesIO()
new_image.save(output, format='PNG')
contents = output.getvalue()
output.close()
url = make_data_url('image/png', contents)
inline = 'url("%s")' % escape(url)
return String.unquoted(inline)
def _position(opposite, positions):
if positions is None:
positions = DEFAULT_POSITION
else:
positions = List.from_maybe(positions)
ret = []
for pos in positions:
if isinstance(pos, (String, six.string_types)):
pos_value = getattr(pos, 'value', pos)
if pos_value in OPPOSITE_POSITIONS:
if opposite:
ret.append(OPPOSITE_POSITIONS[pos_value])
else:
ret.append(pos)
continue
elif pos_value == 'to':
# Gradient syntax keyword; leave alone
ret.append(pos)
continue
elif isinstance(pos, Number):
if pos.is_simple_unit('%'):
if opposite:
ret.append(Number(100 - pos.value, '%'))
else:
ret.append(pos)
continue
elif pos.is_simple_unit('deg'):
# TODO support other angle types?
if opposite:
ret.append(Number((pos.value + 180) % 360, 'deg'))
else:
ret.append(pos)
continue
if opposite:
log.warn("Can't find opposite for position %r" % (pos, ))
ret.append(pos)
return List(ret, use_comma=False).maybe()
def test_subtraction():
assert Number(123) - Number(456) == Number(-333)
assert Number(456) - Number(123) == Number(333)
# TODO test that subtracting e.g. strings doesn't work
assert Color.from_hex('#0f0f0f') - Color.from_hex(
'#050505') == Color.from_hex('#0a0a0a')
def sprite_position(map, sprite, offset_x=None, offset_y=None):
"""
Returns the position for the original image in the sprite.
This is suitable for use as a value to background-position.
"""
map = map.render()
sprite_map = sprite_maps.get(map)
sprite_name = String.unquoted(sprite).value
sprite = sprite_map and sprite_map.get(sprite_name)
if not sprite_map:
log.error("No sprite map found: %s", map, extra={'stack': True})
elif not sprite:
log.error("No sprite found: %s in %s", sprite_name, sprite_map['*n*'], extra={'stack': True})
if sprite:
x = None
if offset_x is not None and not isinstance(offset_x, Number):
x = offset_x
if not x or x.value not in ('left', 'right', 'center'):
if x:
offset_x = None
x = Number(offset_x or 0, 'px')
if not x.value or (x.value <= -1 or x.value >= 1) and not x.is_simple_unit('%'):
x -= Number(sprite[2], 'px')
y = None
if offset_y is not None and not isinstance(offset_y, Number):
y = offset_y
if not y or y.value not in ('top', 'bottom', 'center'):
if y:
offset_y = None
y = Number(offset_y or 0, 'px')
if not y.value or (y.value <= -1 or y.value >= 1) and not y.is_simple_unit('%'):
y -= Number(sprite[3], 'px')
return List([x, y])
return List([Number(0), Number(0)])
def sprite(map, sprite, offset_x=None, offset_y=None, cache_buster=True):
"""
Returns the image and background position for use in a single shorthand
property
"""
map = map.render()
sprite_maps = _get_cache('sprite_maps')
sprite_map = sprite_maps.get(map)
sprite_name = String.unquoted(sprite).value
sprite = sprite_map and sprite_map.get(sprite_name)
if not sprite_map:
log.error("No sprite map found: %s", map, extra={'stack': True})
elif not sprite:
log.error("No sprite found: %s in %s",
sprite_name,
sprite_map['*n*'],
extra={'stack': True})
if sprite:
url = '%s%s' % (config.ASSETS_URL, sprite_map['*f*'])
if cache_buster:
url += '?_=%s' % sprite_map['*t*']
x = Number(offset_x or 0, 'px')
y = Number(offset_y or 0, 'px')
if not x.value or (x.value <= -1
or x.value >= 1) and not x.is_simple_unit('%'):
x -= Number(sprite[2], 'px')
if not y.value or (y.value <= -1
or y.value >= 1) and not y.is_simple_unit('%'):
y -= Number(sprite[3], 'px')
url = "url(%s)" % escape(url)
return List([String.unquoted(url), x, y])
return List([Number(0), Number(0)])
def test_parse_bang_important(calc):
# The !important flag is treated as part of a spaced list.
assert calc('40px !important') == List([
Number(40, 'px'),
String.unquoted('!important'),
],
use_comma=False)
# And is allowed anywhere in the string.
assert calc('foo !important bar') == List([
String('foo'),
String('!important'),
String('bar'),
],
use_comma=False)
# And may have space before the !.
assert calc('40px ! important') == List([
Number(40, 'px'),
String.unquoted('!important'),
],
use_comma=False)
def test_alpha_opacity():
assert calc('alpha(black)') == Number(1.)
assert calc('alpha(rgba(black, 0.5))') == Number(0.5)
assert calc('alpha(rgba(black, 0))') == Number(0.)
# opacity is a synonym
assert calc('opacity(black)') == Number(1.)
assert calc('opacity(rgba(black, 0.5))') == Number(0.5)
assert calc('opacity(rgba(black, 0))') == Number(0.)
def test_parse_special_functions():
ns = CoreExtension.namespace.derive()
calc = Calculator(ns).calculate
# expression() allows absolutely any old garbage inside
# TODO we can't deal with an unmatched { due to the block locator, but ruby
# can
for gnarly_expression in (
"not ~* remotely *~ valid {syntax}",
"expression( ( -0 - floater.offsetHeight + ( document"
".documentElement.clientHeight ? document.documentElement"
".clientHeight : document.body.clientHeight ) + ( ignoreMe"
" = document.documentElement.scrollTop ? document"
".documentElement.scrollTop : document.body.scrollTop ) ) +"
" 'px' )"):
expr = 'expression(' + gnarly_expression + ')'
assert calc(expr).render() == expr
# alpha() doubles as a special function if it contains opacity=n, the IE
# filter syntax
assert calc('alpha(black)') == Number(1)
assert calc('alpha(opacity = 5)') == Function('opacity=5', 'alpha')
assert calc('alpha(opacity = 5)').render() == 'alpha(opacity=5)'
# url() allows both an opaque URL and a Sass expression, based on some
# heuristics
ns.set_variable('$foo', String.unquoted('foo'))
assert calc('url($foo)').render() == "url(foo)"
assert calc('url(#{$foo}foo)').render() == "url(foofoo)"
assert calc('url($foo + $foo)').render() == "url(foofoo)"
# TODO this one doesn't work if $foo has quotes; Url.render() tries to
# escape them. which i'm not sure is wrong, but we're getting into
# territory where it's obvious bad output...
assert calc('url($foo + #{$foo})').render() == "url(foo + foo)"
assert calc('url(foo #{$foo} foo)').render() == "url(foo foo foo)"
with pytest.raises(SassSyntaxError):
# Starting with #{} means it's a url, which can't contain spaces
calc('url(#{$foo} foo)')
with pytest.raises(SassSyntaxError):
# Or variables
calc('url(#{$foo}$foo)')
with pytest.raises(SassSyntaxError):
# This looks like a URL too
calc('url(foo#{$foo} foo)')
def atom(self):
_token_ = self._peek(self.u_expr_chks)
if _token_ == 'LPAR':
LPAR = self._scan('LPAR')
_token_ = self._peek(self.atom_rsts)
if _token_ not in self.argspec_item_chks:
expr_map = self.expr_map()
v = expr_map
else: # in self.argspec_item_chks
expr_lst = self.expr_lst()
v = expr_lst
RPAR = self._scan('RPAR')
return Parentheses(v)
elif _token_ == 'FNCT':
FNCT = self._scan('FNCT')
LPAR = self._scan('LPAR')
argspec = self.argspec()
RPAR = self._scan('RPAR')
return CallOp(FNCT, argspec)
elif _token_ == 'BANG_IMPORTANT':
BANG_IMPORTANT = self._scan('BANG_IMPORTANT')
return Literal(String(BANG_IMPORTANT, quotes=None))
elif _token_ == 'ID':
ID = self._scan('ID')
return Literal(parse_bareword(ID))
elif _token_ == 'NUM':
NUM = self._scan('NUM')
UNITS = None
if self._peek(self.atom_rsts_) == 'UNITS':
UNITS = self._scan('UNITS')
return Literal(Number(float(NUM), unit=UNITS))
elif _token_ == 'STR':
STR = self._scan('STR')
return Literal(String(STR[1:-1], quotes="'"))
elif _token_ == 'QSTR':
QSTR = self._scan('QSTR')
return Literal(String(QSTR[1:-1], quotes='"'))
elif _token_ == 'COLOR':
COLOR = self._scan('COLOR')
return Literal(Color.from_hex(COLOR, literal=True))
else: # == 'VAR'
VAR = self._scan('VAR')
return Variable(VAR)
def log_(number, base=None):
if not isinstance(number, Number):
raise TypeError("Expected number, got %r" % (number, ))
elif not number.is_unitless:
raise ValueError("Expected unitless number, got %r" % (number, ))
if base is None:
pass
elif not isinstance(base, Number):
raise TypeError("Expected number, got %r" % (base, ))
elif not base.is_unitless:
raise ValueError("Expected unitless number, got %r" % (base, ))
if base is None:
ret = math.log(number.value)
else:
ret = math.log(number.value, base.value)
return Number(ret)
def background_brushed(density=None, intensity=None, color=None, opacity=None, size=None, monochrome=False, direction=(), spread=(), background=None, inline=False):
if not Image:
raise Exception("Images manipulation require PIL")
density = [Number(v).value for v in List.from_maybe(density)]
intensity = [Number(v).value for v in List.from_maybe(intensity)]
color = [Color(v).value for v in List.from_maybe(color) if v]
opacity = [Number(v).value for v in List.from_maybe(opacity)]
size = int(Number(size).value) if size else -1
if size < 0 or size > 512:
size = 200
monochrome = bool(monochrome)
direction = [Number(v).value for v in List.from_maybe(direction)]
spread = [Number(v).value for v in List.from_maybe(spread)]
background = Color(background).value if background else None
new_image = Image.new(
mode='RGBA',
size=(size, size)
)
pixdata = new_image.load()
_image_brushed(pixdata, size, density, intensity, color, opacity, monochrome, direction, spread, background)
if not inline:
key = (size, density, intensity, color, opacity, monochrome, direction, spread, background)
asset_file = 'brushed-%s%sx%s' % ('mono-' if monochrome else '', size, size)
# asset_file += '-[%s][%s][%s]' % ('-'.join(to_str(s).replace('.', '_') for s in density or []), '-'.join(to_str(s).replace('.', '_') for s in opacity or []), '-'.join(to_str(s).replace('.', '_') for s in direction or []))
asset_file += '-' + make_filename_hash(key)
asset_file += '.png'
asset_path = os.path.join(config.ASSETS_ROOT or os.path.join(config.STATIC_ROOT, 'assets'), asset_file)
try:
new_image.save(asset_path)
except IOError:
log.exception("Error while saving image")
inline = True # Retry inline version
url = '%s%s' % (config.ASSETS_URL, asset_file)
if inline:
output = six.BytesIO()
new_image.save(output, format='PNG')
contents = output.getvalue()
output.close()
url = make_data_url('image/png', contents)
inline = 'url("%s")' % escape(url)
return String.unquoted(inline)
def test_comparison_numeric():
lo = Number(123)
hi = Number(456)
assert lo < hi
assert lo <= hi
assert lo <= lo
assert hi > lo
assert hi >= lo
assert hi >= hi
assert lo == lo
assert lo != hi
# Same tests, negated
assert not lo > hi
assert not lo >= hi
assert not hi < lo
assert not hi <= lo
assert not lo != lo
assert not lo == hi
# Numbers with units should also auto-cast numbers with units
units = Number(123, "px")
plain = Number(123)
assert units == plain
assert units <= plain
assert units >= plain
assert not units != plain
assert not units < plain
assert not units > plain
# Incompatible units have... rules.
ems = Number(100, "em")
pxs = Number(100, "px")
with pytest.raises(ValueError):
ems < pxs
with pytest.raises(ValueError):
ems > pxs
with pytest.raises(ValueError):
ems <= pxs
with pytest.raises(ValueError):
ems >= pxs
assert not ems == pxs
assert ems != pxs
